{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120749",
    "entityType": "User",
    "nonce": "0x85ec45684cc1f3af43f7b8f74bd4d82390549dbe6619ee1c7ef0e709687a11d5",
    "signature": "0x352cafb9e40cf16a5221054bd0b136ae9e72ab6417cc66a2151501add716920a32750b80c21837e01ad082ea42ef4c598511ff0337324ae7aba4c9b1bacb6adf1c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}